Aviso: por motivos de mantenimiento y mejora del repositorio, mañana martes día 13 de mayo, entre las 9 y las 14 horas, Docta Complutense, no funcionará con normalidad. Disculpen las molestias.
 

Temperature dependence of the volume and surface contributions to the nuclear symmetry energy within the coherent density fluctuation model

Loading...
Thumbnail Image

Full text at PDC

Publication date

2018

Advisors (or tutors)

Editors

Journal Title

Journal ISSN

Volume Title

Publisher

Amer Physical Soc
Citations
Google Scholar

Citation

Abstract

The temperature dependence of the volume and surface components of the nuclear symmetry energy (NSE) and their ratio is investigated in the framework of the local density approximation. The results of these quantities for finite nuclei are obtained within the coherent density fluctuation model (CDFM). The CDFM weight function is obtained using the temperature-dependent proton and neutron densities calculated through the HFBTHO code, which solves the nuclear Skyrme-Hartree-Fock-Bogoliubov problem by using the cylindrical transformed deformed harmonic-oscillator basis. We present and discuss the values of the volume and surface contributions to the NSE and their ratio obtained for the Ni, Sn, and Pb isotopic chains around double-magic Ni-78, Sn-132, and Pb-208 nuclei. The results for the T dependence of the considered quantities are compared with estimations made previously for zero temperature showing the behavior of the NSE components and their ratio, as well as with the available experimental data. The sensitivity of the results on various forms of the density dependence of the symmetry energy is studied. We confirm the existence of "kinks" in these quantities as functions of the mass number at T = 0 MeV for the double closed-shell nuclei Ni-78 and Sn-132 and the lack of kinks for the Pb isotopes, as well as the disappearance of these kinks as the temperature increases.

Research Projects

Organizational Units

Journal Issue

Description

©2018 American Physical Society. Three of the authors (M.K.G., A.N.A., and D.N.K) are grateful for the support of the Bulgarian Science Fund under Contract No. DFNI-T02/19. E.M.G. and P.S. acknowledge support from MINECO (Spain) under Contract Nos. FIS2014-51971-P (E.M.G. and P.S.) and FPA2015-65035-P ©2018 American Physical Society. (E.M.G.).

UCM subjects

Keywords

Collections